/*
 * Copyright 1999-2018 Alibaba Group.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// Package errors defines all exceptions happened in dfget's runtime.
package errors

import (
	"fmt"
)

// New function creates a DFGetError.
func New(code int, msg string) *DFGetError {
	return &DFGetError{
		Code: code,
		Msg:  msg,
	}
}

// Newf function creates a DFGetError with a message according to
// a format specifier.
func Newf(code int, format string, a ...interface{}) *DFGetError {
	return &DFGetError{
		Code: code,
		Msg:  fmt.Sprintf(format, a...),
	}
}

// DFGetError represents a error created by dfget.
type DFGetError struct {
	Code int
	Msg  string
}

func (e *DFGetError) Error() string {
	return fmt.Sprintf("{\"Code\":%d,\"Msg\":\"%s\"}", e.Code, e.Msg)
}
